Do you (as I do...) need a turntable for your train layout ? If you can say yes to this why not look at this:
It is not my project - I know the man behind the idea. It is the first time I see a turntable, where you don't have to raise your entire layout, so we can hide motors etc.
Please give this man a vote ...... And support this idea if you are a trainfan.
More Info here: https://ideas.lego.com/projects/33485
Regards
Henrik